This is the only western were the villains are "robber barons"
Robber barons did NOT exist in the west, they were eastern industrialists or maybe railroad barons.
Was the script written by revisionist Marxists? Certainly! They must have objected to banditos being the villains.
So they create gold-mining tycoon Bartholomew Bogue who owns white slaves in 1890!
Google:
America's Gilded Age: Robber Barons and Captains of Industry
Captains of Industry and Robber Barons. The wealthy elite of the late 19th century consisted of industrialists who amassed their fortunes as so-called robber barons and captains of industry. ...
John D. Rockefeller. ...
Andrew Carnegie. ...
J.P. Morgan. ...
Henry Ford.